Re: [PATCH v2 10/13] EDAC/altera: Skip the panic notifier if kdump is loaded

From: Dinh Nguyen
Date: Tue Aug 16 2022 - 14:44:40 EST




On 7/19/22 14:53, Guilherme G. Piccoli wrote:
The altera_edac panic notifier performs some data collection with
regards errors detected; such code relies in the regmap layer to
perform reads/writes, so the code is abstracted and there is some
risk level to execute that, since the panic path runs in atomic
context, with interrupts/preemption and secondary CPUs disabled.

Users want the information collected in this panic notifier though,
so in order to balance the risk/benefit, let's skip the altera panic
notifier if kdump is loaded. While at it, remove a useless header
and encompass a macro inside the sole ifdef block it is used.

Cc: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Cc: Petr Mladek <pmladek@xxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxx>

---

V2:
- new patch, based on the discussion in [0].
[0] https://lore.kernel.org/lkml/62a63fc2-346f-f375-043a-fa21385279df@xxxxxxxxxx/


Acked-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>